To simplify software development
We define Open Source
The Open Source Definition is the foundation of the modern software ecosystem. We build a world where the freedoms and opportunities of Open Source software can be enjoyed by all.
The leading voice on the policies and principles of open source
Protecting the Open Source ecosystem
We support institutions and individuals working together to create communities of practice in which the healthy open source ecosystem thrives.
Hello From The New Executive Director
A new chapter begins at the Open Source Initiative, and at a moment of rapid change in global tech, our new Executive Director shares his vision for what comes next and why the future of Open …
Welcoming the New Executive Director!
Members Newsletter – April 2026 The news you’ve all been waiting for has arrived – OSI’s new Executive Director, Duane O’Brien, is on the job effective April 13th. The post Welcoming the New Executive Director! appeared …
Welcoming Duane O’Brien as Executive Director of the Open Source Initiative
On behalf of the Board of Directors, I’m thrilled to welcome Duane O’Brien as OSI’s new Executive Director. Duane understands the economic dimensions of Open Source without losing sight of the people who make it work. …
Open Source Initiative Appoints Duane O’Brien as Executive Director
The Open Source Initiative (OSI), globally recognized as the steward of the Open Source Definition, today announced the appointment of Duane O’Brien as its new executive director. The post Open Source Initiative Appoints Duane O’Brien as …
Support Open Source
As a public charity organization, OSI is supported by donations of corporations and individuals. Thanks to our sponsors that support our vision to be the leading voice on policies and principles of Open Source.
The board of directors
Most of OSI’s board of directors are elected by individual members and Affiliate organizations.